Q. Conversion formula for converting amplitude ratio (AR) into decibels is
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Correct Answer: (A)
Decibel = 20 log10 (AR)
Process Control And Instrumentation MCQs | Page - 2
Dear candidates you will find MCQ questions of Process Control And Instrumentation here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. Dead zone is the
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Correct Answer: (C)
Maximum change in the variable that does not change the reading of the instrument
Q. A typical example of a physical system with under damped characteristic is a
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Correct Answer: (B)
Spring loaded diaphragm valve
Q. Dilatometer is used to measure
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Correct Answer: (D)
Contraction/expansion due to changes in temperature
Q. Which of the following relates the absorption & evolution of heat at the junctions of a thermocouple to the current flow in the circuit?
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Correct Answer: (B)
Peltier effect
Q. Pick out the most suitable instrument for measuring temperature in the range of-40 to 425Β°C.
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Correct Answer: (B)
Bimetallic thermometer
Q. What is the Laplace transform of impulse input having magnitude 'X'?
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Correct Answer: (D)
1
Q. Compositional analysis of __________ is done using mass spectrometer.
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Correct Answer: (A)
An isotope
Q. Very low pressure is expressed in microns(ΞΌ), which is equal to __________ mm of Hg coloumn (absolute) at 0Β°C.
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Correct Answer: (B)
0.001
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